From 14d9e94315cd8144ac72d368c45e70869a66799c Mon Sep 17 00:00:00 2001
From: Gustavo Zacarias <gustavo@zacarias.com.ar>
Date: Thu, 9 Jun 2016 07:47:03 -0300
Subject: [PATCH] fuse2fs: might need librt

It uses clock_gettime() which in older glibc versions is in librt.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
[yann.morin.1998@free.fr: properly expand it in the Makefile]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
---
Patch status: sent to linux-ext4 ML

 configure.ac     | 5 +++++
 misc/Makefile.in | 3 ++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 67d7231..a387dfd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1162,6 +1162,11 @@ if test "$ac_cv_func_dlopen" = yes ; then
 fi
 AC_SUBST(MAGIC_LIB)
 dnl
+dnl Check to see if librt is required for clock_gettime() (glibc < 2.17)
+dnl
+AC_CHECK_LIB(rt, clock_gettime, [CLOCK_GETTIME_LIB=-lrt])
+AC_SUBST(CLOCK_GETTIME_LIB)
+dnl
 dnl Check to see if the FUSE library is -lfuse or -losxfuse
 dnl
 FUSE_CMT=
diff --git a/misc/Makefile.in b/misc/Makefile.in
index 43e3c7e..070a6e3 100644
--- a/misc/Makefile.in
+++ b/misc/Makefile.in
@@ -387,7 +387,8 @@ fuse2fs: $(FUSE2FS_OBJS) $(DEPLIBS) $(DEPLIBBLKID) $(DEPLIBUUID) \
 		$(LIBEXT2FS)
 	$(E) "	LD $@"
 	$(Q) $(CC) $(ALL_LDFLAGS) -o fuse2fs $(FUSE2FS_OBJS) $(LIBS) \
-		$(LIBFUSE) $(LIBBLKID) $(LIBUUID) $(LIBEXT2FS) $(LIBINTL)
+		$(LIBFUSE) $(LIBBLKID) $(LIBUUID) $(LIBEXT2FS) $(LIBINTL) \
+		$(CLOCK_GETTIME_LIB)
 
 journal.o: $(srcdir)/../debugfs/journal.c
 	$(E) "	CC $@"
diff --git a/misc/Makefile.in b/misc/Makefile.in
index 43e3c7e..070a6e3 100644
--- a/misc/Makefile.in
+++ b/misc/Makefile.in
@@ -32,6 +32,8 @@
 
 @FUSE_CMT@FUSE_PROG= fuse2fs
 
+CLOCK_GETTIME_LIB = @CLOCK_GETTIME_LIB@
+
 SPROGS=		mke2fs badblocks tune2fs dumpe2fs $(BLKID_PROG) logsave \
 			$(E2IMAGE_PROG) @FSCK_PROG@ e2undo
 USPROGS=	mklost+found filefrag e2freefrag $(UUIDD_PROG) \
-- 
2.7.3

